We always knew the guys from Vulfpeck were nerdy, but this is a whole new level. In a new video made by Jay Harrison, an instrument called an Electromechanical Lithophone is programmed to flawlessly perform Vulfpeck’s track “It Gets Funkier.”

A lithophone is a percussion based instrument made out of rocks, the surface of which can be struck to produce a sound. Lithophones are analogous to xylophones, though xylophones are often made of metal. In this case, the striking is done by a robotic machine, and the surfaces are designed specifically to match various musical tones. The result is some Vulfpeck funk like you’ve never heard before.

Watch the Electromechanical Lithophone at work in the video below!